Disposable, retractable lancet
First Claim
Patent Images
1. An actuating assembly sequentially advancing and retracting a lancet needle, comprising:
- a) housing for containing a lancet needle structure therein and having an opening for projection therethrough of a needle portion of the lancet needle structure;
b) first guide track within said housing for guiding reversible motion of said needle portion to project and retract through said opening; and
c) second guide track within said housing for guiding transmission motion of a linkage portion of said lancet needle structure coupled to said needle portion to induce said motion thereof guided by said first guide track, wherein said second guide track includes first and second substantially linear portions arranged in angled communication in order to guide corresponding redirection of said transmission motion therealong.
5 Assignments
0 Petitions
Accused Products
Abstract
An actuator mechanism and assembly for sequentially advancing and retracting a lancet needle includes a housing having an opening for operating projection of the needle. Two guide tracks are provided within the housing for guiding separate motions of a two-part needle holder structure propelled by a drive spring, and the needle itself is smoothly guided along one of the tracks to advance and thrust the needle into a tissue penetration position immediately followed by automatic retraction along the same highly accurate linear path.
-
Citations
36 Claims
-
1. An actuating assembly sequentially advancing and retracting a lancet needle, comprising:
-
a) housing for containing a lancet needle structure therein and having an opening for projection therethrough of a needle portion of the lancet needle structure; b) first guide track within said housing for guiding reversible motion of said needle portion to project and retract through said opening; and c) second guide track within said housing for guiding transmission motion of a linkage portion of said lancet needle structure coupled to said needle portion to induce said motion thereof guided by said first guide track, wherein said second guide track includes first and second substantially linear portions arranged in angled communication in order to guide corresponding redirection of said transmission motion therealong. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An actuating assembly for sequentially advancing and retracing a lancet needle, comprising:
-
a) a housing for containing a lancet needle structure therein and having an opening for projection therethrough of a needle portion of the lancet needle structure; b) first guide track within said housing for guiding reversible motion of said needle portion to project and retract through said opening; and c) a second guide track within said housing for guiding transmission motion of a linkage portion of said lancet needle structure, further comprising a trigger means for initiating said transmission motion of said linkage portion, wherein said trigger means comprises a trigger member integrally molded with said housing.
-
-
11. An actuating assembly for sequentially advancing and retracting a lancet needle, comprising:
-
a) a housing for containing a lancet needle structure therein having an opening for projection therethrough of a needle portion of the lancet needle structure; b) first guide track within said housing for guiding reversible motion of said needle portion to project and retract through said opening; c) second guide track within said housing for guiding transmission motion of a linkage portion of said lancet needle structure; and d) trigger means for initiating said transmission motion of said linkage portion, wherein said trigger means comprises a trigger member and further comprises retainer means for retaining said trigger member internal to said housing following a single operation of said trigger member to initiate said transmission motion.
-
-
12. An actuating assembly for sequentially advancing and retracing a lancet needle, comprising:
-
a) a lancet needle structure including a linkage portion coupled to a needle holding portion thereof; b) a housing for containing a lancet needle structure therein and having an opening for projection therethrough of a needle portion of the lancet needle structure; c) a first guide track within said housing for reversible guiding motion of said needle portion to project and retract through said opening; and d) a second guide track within said housing for guiding transmission motion of linkage portion of said lancet needle structure, wherein said lancet needle is secured by insertion during molding of said needle holding portion.
-
-
13. An actuating assembly for sequentially advancing and retracting a lancet needle, comprising:
-
a) a lancet needle structure including a linkage portion coupled to a needle holding portion thereof; b) a housing for containing said lancet needle structure therein and having an opening for projection therethrough of a needle portion carried on said needle holding portion of the lancet needle structure; c) a first guide track within said housing for reversible guiding motion of said needle portion to project and retract through said opening; d) a second aisle track within said housing for guiding transmission motion of linkage portion of said lancet needle structure; and e) cam means for guiding motion of said portion linkage portion along a guide cam in order to produce induced thrusting motion of said needle portion, wherein said cam means comprises a cam follower formed on said transmission linkage portion. - View Dependent Claims (14, 15, 16, 17, 18, 19)
-
-
20. An actuating assembly for sequentially advancing and retracing a lancet needle, comprising:
-
a) a lancet needle structure including a linkage portion coupled to a needle holding portion thereof; b) a housing for containing a lancet needle structure therein and having an opening for projection therethrough of a needle portion carried on said needle holding portion of the lancet needle structure; c) a first guide track within said housing for reversible guiding motion of said needle portion to project and retract through said opening; and d) a second guide track within said housing for guiding transmission motion of linkage portion of said lancet needle structure, wherein said transmission linkage portion comprises bearing means for bearing of a drive member thereon to propel said transmission motion. - View Dependent Claims (21)
-
-
22. An actuating assembly for sequentially advancing and retracting a lancet needle, comprising;
-
a) a lancet needle structure including a linkage portion coupled to a needle holding portion thereof; b) a housing for containing a lancet needle structure therein and having an opening for projection therethrough of a needle portion of the lancet needle structure; c) a first guide track within said housing for reversible guiding motion of said needle portion to project and retract through said opening; and d) a second guide track within said housing for guiding transmission motion of linkage portion of said lancet needle structure, further comprising a frangibly removable needle cover formed on said needle holding portion. - View Dependent Claims (23)
-
-
24. A lancet needle structure for use in sequentially advancing and retracting needle carried thereon, comprising:
-
a) a needle holding portion for carrying advancement and retraction of a lancet needle; b) a transmission linkage portion coupled to said needle holding portion in arrangement enabling transmission motion of said linkage portion to induce thrusting motion of said needle portion; and c) cam means for guiding motion of said transmission linkage portion along a guide cam in order to produce said induced thrusting motion of said needle portion, wherein said lancet needle is secured by insertion during molding of said needle holding portion.
-
-
25. A lancet needle structure for use in sequentially advancing and retracting a lancet needle carried thereon, comprising:
-
a) a needle holding portion for carrying advancement and retraction of a lancet needle; b) a transmission linkage portion coupled to said needle holding portion in arrangement enabling transmission motion of said linkage portion to induce thrusting motion of said needle portion, further comprising articulated coupling means for relatively pivotal motion of said transmission linkage portion and needle holding portion; and c) cam means for guiding motion of said transmission linkage portion along a guide cam in order to produce said induced thrusting motion in said needle portion. - View Dependent Claims (26)
-
-
27. A lancet needle structure for use in sequentially advancing and retracting a lancet needle carried thereon, comprising:
-
a) a needle holding portion for carrying advancement and retraction of a lancet needle; b) a transmission linkage portion coupled to said needle holding portion in arrangement enabling transmission motion of said linkage portion to induce thrusting motion of said needle portion; and c) cam means for guiding motion of said transmission linkage portion along a guide cam in order to produce said induced thrusting motion of said needle portion, wherein said cam means comprises a cam follower formed on said transmission linkage portion. - View Dependent Claims (28, 29, 30)
-
-
31. A lancet needle structure for use in sequentially advancing and retracting a lancet needle carried thereon, comprising:
-
a) a needle holding portion for carrying advancement and retraction of a lancet needle; b) a transmission linkage portion coupled to said needle holding portion in arrangement enabling transmission motion of said linkage portion to induce thrusting motion of said needle portion; and c) cam means for guiding motion of said transmission linkage portion along a guide cam in order to produce said induced thrusting motion of said needle portion, wherein said transmission linkage portion comprises bearing means for bearing of a drive member thereon to propel said transmission motion. - View Dependent Claims (32)
-
-
33. A lancet needle structure for use in sequentially advancing and retracting a lancet needle carried thereon, comprising:
-
a) needle holding portion for carrying advancement and retraction of a lancet needle; b) a transmission linkage portion coupled to said needle holding portion in arrangement enabling transmission motion of said linkage portion to induce thrusting motion of said needle portion; c) cam means for guiding motion of said transmission linkage portion along a guide cam in order to produce said induced thrusting motion of said needle portion; and d) a frangibly removable needle cover formed on said needle holding portion. - View Dependent Claims (34)
-
-
35. An actuating assembly for sequentially advancing and retracting a lancet needle, comprising:
-
a) a lancet needle structure including a linkage portion coupled to induce motion of a needle carriage portion thereof; b) a housing for containing said lancet needle structure therein and having an opening for projection therethrough of a needle carried on said needle carriage portion; c) a first guide track within said housing for guiding reversible motion of said needle carriage portion to project and retract the carried needle through said opening; and d) a second guide track within said housing for guiding transmission motion of said linkage portion of said lancet needle structure;
wherein said second guide track comprises first and second portions arranged in communication to guide corresponding redirection of said transmission motion therealong and further comprises a third, release portion leading into said first track portion thereof. - View Dependent Claims (36)
-
Specification